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Mertieite-II Mineral Data
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General Mertieite-II Information
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 Chemical Formula: |
Pd8(Sb,As)3 |
| Composition: |
Molecular Weight = 1,211.93 gm |
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Antimony 29.13 % Sb |
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Arsenic 0.62 % As |
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Palladium 70.25 % Pd |
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______ |
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100.00 % |
| Empirical Formula: |
Pd8Sb2.9As0.1 |
| Environment: |
Small grains in precious metal concentrates. |
| IMA Status: |
Approved IMA 1973 |
| Locality: |
Goodnews Bay, Alaska, USA. Link to MinDat.org Location Data. |
| Name Origin: |
Named for John B. Mertie (1888-1980), geologist, U.S. Geological Survey. |
| Name Pronunciation: |
Mertieite-II + Pronunciation  |
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Mertieite-II Image |
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Images:
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Mertieite-II
Comments: Oil immersion hotomicrograph of inclusions of mertieite-II in matrix of Pt-Fe alloy (CanMin, v 42, p 614).
Location: Kondyor PGE placer, Khabarovskiy Kray, eastern Siberia, Russia.
Scale: See Image.
© Canadian Mineralogist |
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Mertieite-II Crystallography
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| Axial Ratios: |
a:c = 1:5.64452 |
| Cell Dimensions: |
a = 7.601, c = 42.904, Z = 12; V = 2,146.69 Den(Calc)= 11.25 |
| Crystal System: |
Trigonal - Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3c |
| X Ray Diffraction: |
By Intensity(I/Io): 2.191(1), 2.281(0.9), 1.23(0.6), |
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Physical Properties of Mertieite-II
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| Color: |
Brass yellow. |
| Density: |
11.29 |
| Diaphaneity: |
Opaque |
| Habit: |
Anhedral Grains - Granular minerals without the expression of crystal shapes |
| Habit: |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. |
| Hardness: |
6 - Orthoclase |
| Luster: |
Metallic |
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Optical Properties of Mertieite-II
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| RL Anisotrophism: |
Distinct, dark blue-gray to dark brown. |
| RL Color: |
Brassy yellow. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Mertieite-II in Air
| λ |
R |
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∑ R(λ) |
| 420 nm |
45.00 |
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| 440 nm |
44.40 |
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| 460 nm |
44.70 |
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| 480 nm |
45.60 |
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| 500 nm |
47.00 |
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| 520 nm |
48.70 |
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| 540 nm |
50.10 |
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| 560 nm |
51.30 |
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| 580 nm |
52.30 |
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| 600 nm |
53.20 |
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| 620 nm |
54.00 |
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| 640 nm |
54.90 |
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| 660 nm |
55.70 |
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| 680 nm |
56.50 |
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| 700 nm |
57.60 |
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Calculated Relative Intensity Colors of Mertieite-II in Air
Relative
Intensity |
0% |
30% |
60% |
90% |
100% |
120% |
150% |
180% |
200% |
| R |
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Calculated Properties of Mertieite-II
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| Electron Density: |
Bulk Density (Electron Density)=9.64 gm/cc
note: Specific Gravity of Mertieite-II =11.3 gm/cc.
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| Fermion Index: |
Fermion Index = 0.15
Boson Index = 0.85 |
| Photoelectric: |
PEMertieite-II = 271.97 barns/electron
U=PEMertieite-II x rElectron Density=2,621.59 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Mertieite-II is Not Radioactive |
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Mertieite-II Classification
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| Dana Class: |
02.16.03.01 (02)Sulfides - Including Selenides and Tellurides |
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(02.16)with miscellaneous formulae |
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(02.16.03)Dana Group |
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02.16.03.01 Mertieite-II Pd8(Sb,As)3 R 3c 3m |
| Strunz Class: |
02.AC.10b 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.A - Simple Sulfides, Selenides, etc |
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02.AC -Alloys of metalloids with PGE |
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02.AC.10b Mertieite-II Pd8(Sb,As)3 R 3c 3m |
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Other Mertieite-II Information
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| References: |
NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(AntBidBlaNic1) |
| See Also: |
Links to other databases for Mertieite-II :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info
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Mertieite-II
Pd8(Sb,As)3
Dana No: 02.16.03.01 Strunz No: 02.AC.10b
Locality:
Notes:
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